Blog post
Maths in a minute: Binary numbers
How do you write numbers as string of 0s and 1s?
Content about “ number system
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Article
Why the answer to any sum is 10
Learning mathematics involves a progression to higher and higher concepts, building on the foundations of what we have already learnt. But Andrew Irving and Ebrahim Patel explain that no matter how high your mathematical knowledge reaches you must never lose sight of your foundations, no matter how basic they may seem.
Article
Colouring by numbers
How does a computer understand the colours to be displayed on the monitor's screen? It's all about red, green and blue and numbers written in a special way.
Article
The fabulous positional system
Chris Hollings reveals that our number system, much used but rarely praised, is in fact a work of genius and took millennia to evolve.
Article
Editorial
The Plus anniversary year — A word from the editors
News story
Not just knots: the secrets of khipu
The Inka way of counting